Cheap flights from Austin to Illinois from $72
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Austin to Illinois departing on 9/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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How to get the cheapest flight ticket from Austin to Illinois
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to Illinois?
The cheapest month to fly to Illinois from Austin is in April. Flight prices, which tend to average around $247, are often lower during this time because this is during the off-season. If you aren’t able to travel to Illinois during the month of April, then flying in March is also cheap. Prices for this month can be found on momondo for an average of $279.
What is the cheapest day to depart on your flight to Illinois?
The cheapest day to depart from Austin to Illinois is on a Thursday when prices can be found for as low as $386. Flights from Austin to Illinois on a Sunday will generally be more expensive and average around $759. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.
What is the cheapest time of day to depart on your flight to Illinois?
Our most recent data shows that the best time of day to fly to Illinois is in the evening. Flights from Austin to Illinois during this time can be as low as $342. Flights in the afternoon are often more expensive with an average ticket price of $631.
What is the cheapest Austin Bergstrom to Illinois flight route?
Fly from Austin Bergstrom to Chicago O'Hare Intl for the best Austin Bergstrom - Illinois flight prices
How far in advance should I book a flight to Illinois?
You are more likely to see cheaper flights to Illinois from Austin when booking 15 weeks ahead of your departure date. In general, you can expect to find flights to Illinois for around $332 when searching 15 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Illinois from Austin for as low as $242 on momondo.
What cabin class options are available on Austin Bergstrom to Illinois flights?
There are 4 cabin classes available to choose from on Austin Bergstrom to Illinois flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
What is the cheapest airline that flies from Austin Bergstrom to Illinois?
American Airlines, Spirit Airlines, and Southwest are the most popular carriers operating from Austin Bergstrom to Illinois
What airlines fly to Illinois?
American Airlines, United Airlines and Southwest are the top three most popular airlines that fly to Illinois from Austin according to our data. American Airlines is the first choice among our users, with 59% of people opting to fly with this airline when traveling to Illinois. Keep in mind that there are 6 different airlines that fly to Illinois on a routine basis, so you have a few additional options to choose from.
How many flights depart from Austin to Illinois on average per day?
The number of flights available between Austin and Illinois is 48 per day as of June 2025. The most frequent departure time is 3:00PM, with 45% of daily flights leaving at noon.
How many flights depart from Austin to Illinois on average per week?
As of June 2025, 342 flights take off from Austin and land in Illinois each week. The most common flight departure day for this route is Sun, with 16% of weekly flights taking off on this day.
Cheap Austin to Illinois flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Austin to Illinois
When did momondo last update prices for flights from Austin Bergstrom Airport to Illinois?
Prices for flights from Austin Bergstrom Airport to Illinois refresh daily.
How many operators does momondo search for flights from Austin Bergstrom Airport to Illinois?
As of June 2025, there are 6 operators available to choose from for flights from Austin Bergstrom Airport to Illinois.
How old do you have to be to fly from Austin Bergstrom Airport to Illinois?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Austin Bergstrom Airport to Illinois.
What documentation or ID do you need to fly to Illinois?
The necessary travel and health documents for your Illinois trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Austin to Illinois?
Based on momondo bookings for flights between Austin and Illinois, the leading plane model is Boeing 737-800, making up 18.99% of the total bookings. Other popular models include Airbus A319 with 18.27%, Boeing 737 MAX 8 with 17.28%, and Boeing 737-800 Passenger/BBJ2 (winglets) with 6.90%.
Best airlines flying from Austin to Illinois
Compare and see reviews for airlines that fly from Austin to Illinois with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $55 | Free Cancellation | Rating 5.9 3,296 reviews | |||
| PriceFrom $170 | Free Cancellation | Rating 8.0 4,278 reviews | |||
| PriceFrom $174 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $176 | Free Cancellation | Rating 6.3 8,060 reviews | |||
| PriceFrom $199 | Free Cancellation | Rating 7.4 8,801 reviews | |||
| PriceFrom $216 | Free Cancellation | Rating 8.0 7,963 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from Austin to Illinois?
Finding the right flight to Illinois from Austin is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Illinois quick and easy, saving you time and money.
Can I find flights from Austin to Illinois with flexible booking policies on momondo?
Yes. All flights to Illinois from Austin on momondo can be compared and filtered by various policies on offer, including flexible booking.
How can momondo help me find flights from Austin to Illinois?
momondo provides multiple filters to help you find the best flight to Illinois from Austin. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.
I’m not ready to book a flight from Austin to Illinois right now. Can momondo alert me if prices change?
Yes. momondo can track prices for Austin to Illinois flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.